Diflubenzuron and diflubenzuron are insect growth regulators, and no residue has good efficacy, long duration, and human and animal Niaoyu bee poison no adverse drug resistance, and less prone to a variety of chemical pesticides mix The advantages of reaction, etc., are therefore popular among people, and are widely used in agriculture, forestry, fruit and vegetable crops. Tips for China's pesticide network should pay attention to the above points when using pesticides to prevent the failure of the agent and avoid the occurrence of safety accidents. Led Outdoor Wall Light,Modern Outdoor Wall Lighting,Led Outdoor Light,Led Outdoor Lamp Ningbo Royalux Lighting Co., Ltd. , https://www.royaluxlite.com
Both chlorfenapyr and diflubenzuron are inhibitors of the formation of chitin in insect epidermis. In 1972, the benzoylurea compound diflubenzuron (fluorourea) was first developed by Dutch scientists. number 1. These compounds have a toxic effect on insect larvae, which is particularly intense in molting. The larvae can not form new inner epidermis, interfere with the synthesis of chitinase, inhibit the synthesis of chitin in the epidermis of the pest and make the pest disabled. Death, China has long been synthesized and has been widely used.
Diflubenzuron is also known as chlorpyrifos No. 3, diurea No. 1. It is stable to light and heat, easily decomposed in the presence of alkali or strong acid, and stable at room temperature. Diflubenzuron is mainly used for stomach poisoning, and has certain contact effects. It can inhibit and destroy the formation of chitin synthase, which causes the larva to not produce new epidermis and hinder its metamorphosis and death. It also inhibits the synthesis of chitin during embryo development in the egg. The eggs cannot be hatched normally. The larvae usually die after 3-4 days of feeding. The efficacy period can be maintained for about 30 days. The use of chlorfenapyr to control pests has good adhesion and is protected from rain. It is a low-toxic insecticide and safe for humans, plants and natural enemies, and does not pollute the environment. At present, the dosage form that has been developed and used in China has 20% and 25% of the chlorpyrifos No. 3 suspension.
Control objects and methods of use The jujube bio-pesticide has been widely used to control various agricultural and forestry pests and diseases, such as corn borer, wheat armyworm, tea mites, leaf miner, tea black moth, cabbage caterpillar, pine caterpillar, dance. A variety of pests such as venomous moths have been proved to have a special effect on the larvae of most lepidopteran pests by 25% chlorpyrifos No. 3 1500 times. The onion root and the garlic root can be effectively killed by using 25% of the chlorpyrifos 3 and 1000 times solution. It is also especially suitable for the control of lepidopteran pests on garden plants. It is mainly used to control the young larvae of pests such as the cockroach, the larvae, the moth and the gypsy moth. It can also be used to control the caterpillars, gypsy moths, and poisonous moths. Young larvae of pests. When the dosage is 20%, the concentration is 1500-2500 times; the dosage is 25%, and the concentration is 1500-2000 times. In addition, 25% Diflubenzuron No. 3 has special effects on the larvae of the larvae of the toilet and the mosquito larvae of the Deadwater Bay, and is an ideal agent for controlling sanitary pests.
Note: First, the drug has a precipitation phenomenon during storage. Shake well before use, and then dilute with water to not affect the efficacy. Second, the agent cannot be mixed with alkaline or strong acidic substances to avoid decomposition failure. The third is that the chlorfenapyr begins to see the effect 3-4 days after the application, and should be used early in the early stage of the pest. Fourth, the young urea is highly toxic to the silkworm, and it cannot be used on the mulberry tree. Fifth, due to the special mechanism of insecticidal action, the insecticidal rate is slightly slower, and it is best applied to the young larvae.
Diflubenzuron is also known as chlorpyrifos No. 1, dichlorfen. The mechanism of action of chlorpyrifos No. 1 is basically the same as that of chlorpyrifos No. 3. It has obvious insecticidal effect on the insecticides that have developed resistance, and has special effects on lepidopteran larvae. It is also effective against a variety of pests of Coleoptera and Diptera. The efficacy period is about 40 days, which is toxic to eggs. Although the drug is only about 10 days longer than the effective period of the chlorfenazone 3, it is extremely beneficial to control the pests that only need 30-40 days to complete the life history of the first generation. Compared with the chlorpyrifos 3, the number of fights can be reduced. ,cut costs. The dosage forms that have been developed and developed include 20% diflubenzuron suspension agent and 25% dichlorpyrifos wettable powder. According to the pesticide network , it is mainly used to control various pests such as leaf roller moth, moth, moth, moth and moth. . In the early stage of larval hatching, spray with 20% diflubenzuron suspension agent 2000-2500 times.
Precautions:
First, the preparation has a precipitation phenomenon during storage, and should be shaken and diluted before use.
Second, the efficacy of diflubenzuron is slow, and the peak of pest death can be reached 7 days after application. Therefore, it should be applied in the egg hatching period or the young larval stage, when the population density is low, or mixed with the quick-acting agent.
Third, it can not be mixed with alkaline substances to avoid decomposition failure.
Fourth, the pesticide is toxic to silkworms and should be banned from use on mulberry trees. It should be safe to use near mulberry gardens.